Liquid detergent compositions

Abstract

Liquid detergent compositions can include a first surfactant which is a mixture of surfactant isomers of Formula 1 and surfactants of Formula 2: wherein from about 50% to about 100% by weight of the first surfactant are isomers having m+n=11; wherein between about 25% to about 50% of the mixture of surfactant isomers of Formula 1 have n=0; wherein from about 0.001% to about 25% by weight of the first surfactant are surfactants of Formula 2; and wherein X is a hydrophilic moiety; and a second surfactant including a linear alkyl benzene sulfonate.

What is claimed is: 
     
       1. A liquid detergent composition comprising:
 a) from about 1% to about 30%, by weight of the composition of a first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and surfactants of Formula 2: 
 
       
         
           
           
               
               
           
         
         wherein from about 90% to about 100% by weight of the first surfactant are isomers having m+n=11; wherein between about 25% to about 50% of the mixture of surfactant isomers of Formula 1 have n=0; wherein from about 0.001% to about 25% by weight of the first surfactant are surfactants of Formula 2; and wherein X is a hydrophilic moiety, wherein the first surfactant does not contain isomers of Formula I with n equal to or greater than 6; 
         b) from about 1% to about 30%, by weight of the composition of a second surfactant comprising a linear alkyl benzene sulfonate; and 
         c) a detergent adjunct. 
       
     
     
       2. The liquid detergent composition of  claim 1 , wherein the liquid detergent composition has a greater stain removal score versus the combination of scores of a first reference composition comprising the first surfactant and a second reference composition comprising the second surfactant. 
     
     
       3. The liquid detergent composition of  claim 2 , wherein the stain comprises discriminative sebum, black todd clay, burnt butter, makeup, dust sebum, or bacon grease. 
     
     
       4. The liquid detergent composition of  claim 3 , wherein the ratio by weight of the first surfactant to the second surfactant is from about 2:1 to about 1:2. 
     
     
       5. The liquid detergent composition of  claim 3 , wherein the ratio by weight of the first surfactant to the second surfactant in is about 1:1. 
     
     
       6. The liquid detergent composition of  claim 4 , further comprising an additional surfactant comprising a nonionic surfactant, an anionic surfactant, or a combination thereof. 
     
     
       7. The liquid detergent composition of  claim 6 , wherein the additional surfactant comprises a combination of an alkyl sulfate and a nonionic surfactant. 
     
     
       8. The liquid detergent composition of  claim 6 , wherein the additional surfactant comprises an anionic surfactant and a nonionic surfactant comprising an ethoxylated alcohol. 
     
     
       9. The liquid detergent composition of  claim 4 , wherein the detergent adjunct comprises an enzyme, an enzyme stabilizer, a builder, a hueing agent, anti-soil redeposition agent, a bleach, or a combination thereof. 
     
     
       10. The liquid detergent composition of  claim 1 , wherein the composition has an actual stain removal index which is 0.5 or more, greater than that of an expected stain removal index. 
     
     
       11. The liquid detergent composition of  claim 10 , wherein the stain removal is measured on discriminative sebum, black todd clay, burnt butter, makeup, dust sebum, bacon grease, or a combination thereof. 
     
     
       12. The liquid detergent composition of  claim 1 , wherein the linear alkyl benzene sulfonate has an average carbon chain length of about 11 to about 12. 
     
     
       13. The liquid detergent composition of  claim 12 , wherein the linear alkyl benzene sulfonate comprises greater than 50%, by weight of C12, greater than 75% by weight of C12, a ratio of even carbons to odd carbons of about 3:2 to about 99:1, or a combination thereof. 
     
     
       14. A liquid detergent composition, comprising:
 a) a first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and surfactants of Formula 2: 
 
       
         
           
           
               
               
           
         
         wherein from about 50% to about 100% by weight of the first surfactant are isomers having m+n=11; wherein between about 25% to about 50% of the mixture of surfactant isomers of Formula 1 have n=0 and between about 15% to about 40% by weight of the first surfactant of the mixture of surfactant isomers of Formula 1 have n=1; wherein from about 0.001% to about 25% by weight of the first surfactant are surfactants of Formula 2; and wherein X is a hydrophilic moiety; and 
         b) a second surfactant comprising a C10-C13 linear alkyl benzene sulfonate; 
         wherein the ratio by weight of the first surfactant to the second surfactant is from about 5:1 to about 1:5. 
       
     
     
       15. The liquid detergent composition of  claim 14 , wherein about 60% to about 90% by weight of the first surfactant of the mixture of surfactant isomers of Formula 1 have n<3. 
     
     
       16. The liquid detergent composition of  claim 14 , wherein about 90% to about 100%, by weight of the first surfactant, surfactant isomers having m+n=11. 
     
     
       17. The liquid detergent composition of  claim 16 , wherein the composition has an actual stain removal index which is 0.5 or more, greater than that of an expected stain removal index, wherein the stain removal is measured on discriminative sebum, black todd clay, burnt butter, makeup, dust sebum, or bacon grease. 
     
     
       18. The liquid detergent composition of  claim 17 , wherein the composition has a ratio by weight of the first surfactant to the second surfactant of about 2:1 to about 1:2, or about 1:1. 
     
     
       19. The liquid detergent composition of  claim 18 , wherein the liquid detergent composition comprises from about 1% to about 10%, by weight of the composition of the first surfactant and from about 1% to about 10%, by weight of the composition of the second surfactant.